1.1.3

Buses

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Buses

Buses are used to send and receive data and instructions from main memory (RAM).

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Function

  • Buses are used to send and receive data and instructions from main memory (RAM).
  • A Von Neumann CPU has 3 buses:
    • The data bus
    • The address bus
    • The control bus
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Data bus

  • The data bus retrieves data and instructions from main memory.
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Address bus

  • The address bus sends addresses to the main memory.
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Control bus

  • The control bus sends control signals to other devices inside the computer system.

Jump to other topics

1Components of a Computer

2Software & Software Development

3Exchanging Data

4Data Types, Data Structures & Algorithms

5Legal, Moral, Cultural & Ethical Issues

6Elements of Computational Thinking

6.1Thinking Abstractly

6.2Thinking Ahead

6.3Thinking Procedurally

6.4Thinking Logically

6.5Thinking Concurrently

7Problem Solving & Programming

8Algorithms

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